Add llm-box - Terminal-based AI workflow engine

[alib8b8]

About llm-box

llm-box is a terminal-based AI workflow engine with YAML-driven pipelines that supports 20+ LLM providers, including OpenRouter via its OpenAI-compatible API.

Key Features:

• 🎯 YAML-defined workflows with visual pipeline execution in terminal
• 🔌 20+ built-in LLM providers (OpenAI, DeepSeek, Kimi, GLM, Qwen, etc.) + universal OpenAI-compatible node
• 🛠️ Built-in utility nodes: fetch_url, file_read/write, json_parse, template_render, http_request, execute, notify
• 🔧 Custom external node support (Python, JavaScript, any language)
• 📦 Cross-platform CLI (Linux, macOS, Windows)

OpenRouter Integration:

• ✅ Full OpenRouter API compatibility via the universal openai node
• ✅ Users can bring their own OpenRouter API key
• ✅ Access all 200+ models available on OpenRouter
• ✅ Simple setup: set OPENAI_API_KEY and OPENAI_API_BASE=https://openrouter.ai/api/v1

Links:

• GitHub: https://github.com/alib8b8/llm-box
• OpenRouter Setup Guide: https://github.com/alib8b8/llm-box/blob/main/README.md#openrouter
• Example Workflow: https://github.com/alib8b8/llm-box/blob/main/examples/openrouter_summary.yaml

Checklist

• App uses OpenRouter for AI model access
• App allows users to bring their own OpenRouter API Key
• App is publicly accessible (open source on GitHub)
• App has a logo image
• Folder name uses lowercase letters, numbers, and hyphens